Jamaican Mango and Lime Jamaican Black Castor Oil Rosemary is a powerful, all purpose healing oil made from Jamaican Castor Bea ns roasted and ground manually then boiled to produce 100% pure organic oil. This Jamaican Black Castor Oils are pure and unrefined, retaining all their nutritive properties making them great as a skin softening, moisturizi ng massage oil or as a hot oil treatment for dry damaged hair, hair growth and t hinning hair.